Home / 1,171.49-1,746.84-1,125.32

Finding the Fourth Proportional to 1,171.49, 1,746.84 and 1,125.32

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Solution

The fourth proportional to 1,171.49, 1,746.84 and 1,125.32 is: 1,677.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171.49 : 1,746.84 = 1,125.32 : x
  2. Step 2: Convert to fraction form
    1,171.49/1,746.84 = 1,125.32/x
  3. Step 3: Cross multiply
    1,171.49x = 1,746.84 × 1,125.32
  4. Step 4: Simplify right side
    1,171.49x = 1,965,748.36
  5. Step 5: Solve for x
    x = 1,965,748.36/1,171.49
  6. Step 6: Final answer
    x = 1,677.99

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.